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Ivan M Johnston

Ivan M Johnston publishes mostly in Ecology, Evolution, Behavior and Systematics, Plant Science and Food Science, on topics such as Botany, Ecology, and Taxonomy Studies, Plant Diversity and Evolution and Mediterranean and Iberian flora and fauna.

World rank
#684,162
of 1,633,909 ranked researchers
Rank in United States
#206,607
of 358,040
Works
30
Citations
65
Citations per work
2.2

What does Ivan M Johnston research?

Ecology, Evolution, Behavior and Systematics: 38.6%Plant Science: 31.8%Food Science: 4.5%Cell Biology: 4.5%other fields: 20.6%39%top field
Ecology, Evolution, Behavior and Systematics38.6%Plant Science31.8%Food Science4.5%Cell Biology4.5%other fields20.6%

Shares of their own output, by the field each of their topics belongs to. The grey slice is everything not listed.

  1. 1Ecology, Evolution, Behavior and Systematics39% of their works
  2. 2Plant Science32% of their works
  3. 3Food Science4% of their works
  4. 4Cell Biology4% of their works
  5. 5Forestry4% of their works
  6. 6Anthropology4% of their works

Research topics

Which keywords describe Ivan M Johnston's research?

The keywords of their largest research topics: Biogeography, Phylogeny, Taxonomy, Molecular Phylogeny, Invasive Species, Antioxidant, Cyperus and Angiosperm Phylogeny.

Size is their works in the topics tagged with each word, from their 8 largest topics. Each links to the topic it comes from most.

All 21 words, with their numbers
  1. Biogeography204 topics
  2. Phylogeny143 topics
  3. Taxonomy133 topics
  4. Molecular Phylogeny102 topics
  5. Invasive Species92 topics
  6. Antioxidant71 topic
  7. Cyperus71 topic
  8. Angiosperm Phylogeny61 topic
  9. Flowering Plants61 topic
  10. Mediterranean51 topic
  11. Vascular Flora51 topic
  12. Ecosystem Services41 topic
  13. Lupin Seeds41 topic
  14. Pollinator Decline41 topic
  15. Secondary Metabolites41 topic
  16. Agroforestry21 topic
  17. Brassicaceae21 topic
  18. Endophytic Fungi21 topic
  19. Fungal Pathogens21 topic
  20. Tree Domestication21 topic
  21. molecular systematics21 topic

Where does Ivan M Johnston work?

Ivan M Johnston's main affiliation in the publication record is Missouri Botanical Garden, United States.

How many publications and citations does Ivan M Johnston have?

Science Explorer counts 30 works and 65 citations for Ivan M Johnston, ranking #684,162 of 1,633,909 researchers worldwide on the composite score.

Ranked on field-normalised excellence (50%), output (30%) and citations (20%). Counts come from OpenAlex author records, which occasionally merge different people who share a name or split one person into several.

Papers, co-authors, who cited this work and researchers on the nearest topics are in the interactive view on the map. Is this your page? Request a correction or removal.